Increased Gas Mileage (helps maintain gas mileage in newer cars and helps improve or restore gas mileage in older cars, by virtue of reducing engine deposits)
Improved Performance
Extended Engine Life
Reduced Emissions (helps maintain emissions in newer cars, and reduce emissions in older cars, by virtue of reducing engine deposits)
Increased Horsepower
Overall Rating:
5out of5
Rating breakdown3 reviews
5 Stars
3
4 Stars
0
3 Stars
0
2 Stars
0
1 Star
0
3 of 3(100%)reviewers would recommend this product to a friend.
"I have had 4 Cadillac w/Northstar engine..all ran over 150K miles. They tend to knock from carbon around 75K miles. Adding ZMAX at that time made no difference. Newest one is 2088 DTS. Started using ZMAX from first oil change; along with top-tier fuel per dealer recommendation(Shell V-Power).Car has over 80K miles...engine is as quiet as new. I use ZMAX engine and fuel additive approx. 4 times a year...Carroll Shelby endorses it; and he has great integrity in the auto industry...use ZMAX from day one."
Pros: easy to use
Cons: not cheap
+10points
10out of10found this review helpful.
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"Every heard of better than new condition? I never thought it was true until I tried Z-Max. Soaks into metal, cleans, lubricates and follows through on it's prmoses. You want more power and mileage that LASTS? Get this, and see for yourself!"
Pros: Your engine will perform better than it was out of the crate.
Cons: It's over $20, but it's worth every penny.
+2points
2out of2found this review helpful.
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"I used this stuff in my 1994 f-150 and i saw and felt a great running truck! I would use this product a can!!!!"
Pros: very very happy with it !
Cons: There's nothing wrong with it!
+6points
6out of6found this review helpful.
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